Climbing mechanism for building demolition
The gear-tooth plate meshing transmission system of the climbing mechanism for building demolition enables rapid lifting and emergency retraction of the aerial work platform, solving the safety hazards of high-altitude operations during building demolition and improving construction efficiency and safety.
Patent Information
- Application Number
- CN202520413753.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-11
AI Technical Summary
During building demolition, especially when near residential buildings, mechanical demolition cannot precisely control the direction of wall collapse, posing safety hazards. Manual demolition is inefficient and carries high risks due to working at heights.
Design a climbing mechanism for building demolition, using a gear-tooth plate meshing transmission system to achieve rapid lifting and emergency retraction of the aerial work platform, ensuring the safe evacuation of workers.
The aerial work platform is rapidly raised, lowered, and retracted via a three-stage linkage mechanism, reducing the risk of falling objects and structural collapse, and improving construction safety and efficiency.
Smart Images

Figure CN223779904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a climbing mechanism for building demolition. Background Technology
[0002] Building demolition engineering refers to construction activities involving the demolition of completed or partially completed buildings or structures. These projects are characterized by high mobility, high risk, and open-air operations, requiring implementation by a professionally qualified engineering team. Common demolition methods include manual demolition, blasting demolition, and mechanical demolition.
[0003] In urban renewal and urban village redevelopment, it is common to encounter situations where some residents object to the demolition plan and refuse to relocate. However, the overall progress of the demolition project cannot be halted, so a phased demolition strategy is usually adopted. This involves first demolishing the houses of those who have already moved out, and then strictly limiting the use of mechanical demolition (such as excavators) when demolishing houses near those still inhabited. This is because excavators cannot precisely control the direction of wall collapse; if a wall collapses towards inhabited houses, it could pose a serious safety threat to residents. Therefore, in such cases, manual demolition using hand-held electric drills and hammers is typically employed.
[0004] Manual demolition typically targets walls near inhabited houses or protected buildings. Before demolishing, excavators will remove other parts, leaving only the walls near inhabited houses, connected shear walls, and some floor slabs to reduce the workload of manual demolition. When demolishing the second-floor walls of rural self-built houses (usually two stories), since most of the building's structure (including stairs) has been removed, construction workers need to use temporary access routes or equipment to reach the second floor to work. However, when the walls are about to tilt and collapse, it may pose a safety hazard to construction workers, such as sudden collapse causing injury or equipment damage.
[0005] In response to this technical problem, this application proposes a climbing mechanism for building demolition. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a climbing mechanism for building demolition. This mechanism enables rapid lifting and emergency retraction of the aerial work platform. Combined with a gear-tooth plate meshing transmission system, it ensures high-altitude stability and allows workers to safely evacuate from the highest working height to the base protection zone in a short time, reducing the risk of falling objects and structural collapse.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A climbing mechanism for building demolition includes a drive vehicle body. A fixed plate is fixedly connected to the top of the drive vehicle body. Support plates are rotatably connected to both the front and rear sides of the right end of the fixed plate. A connecting column is rotatably connected to one end of each support plate. Lifting plates are connected to the front and rear ends of the connecting column via support groups. A protective plate is fixedly connected to the top of the lifting plate. A connecting platform is fixedly connected to the top of the lifting plate corresponding to the inner wall of the protective plate. An electric hydraulic cylinder is fixedly connected to the bottom end of the connecting platform. A fixed shell is connected to the drive end of the electric hydraulic cylinder via an extension group. A sliding shell is slidably connected to the inner wall of the fixed shell. A sliding shell is slidably connected to the inner wall of the sliding shell. A sliding shell is slidably connected to the inner wall of the sliding shell. A sliding shell is slidably connected to the inner wall of the sliding shell. A plurality of pedals are fixedly connected to the inner wall of the sliding shell.
[0009] Furthermore, the support assembly includes a second support plate rotatably connected to both the front and rear sides of the bottom end of the lifting plate, and the two support plates are rotatably connected to the front and rear ends of the connecting column at opposite ends.
[0010] Furthermore, both the right front and rear sides of the second support plate and the first support plate are rotatably connected to sliders, and the outer walls of the sliders are slidably connected to slide plates. The slide plates are respectively fixedly connected to the front and rear sides of the bottom end of the lifting plate and the front and rear sides of the top end of the fixed plate.
[0011] Furthermore, a sliding plate is slidably connected to the inner wall of the bottom end of the fixed plate, and an electric hydraulic cylinder is fixedly connected to the top end of the sliding plate. The drive end of the electric hydraulic cylinder is rotatably connected to a transmission column, and the front and rear ends of the transmission column are respectively rotatably connected to opposite ends of the support plate.
[0012] Furthermore, the extension assembly includes fixed toothed plates fixedly connected to the inner walls of both the front and rear ends of the fixed shell, with the tooth grooves of the fixed toothed plates facing opposite directions, and the outer wall of the fixed shell fixedly connected to the inner wall of the connecting platform.
[0013] Furthermore, a transmission gear plate is fixedly connected to the inner walls of both the front and rear ends of the sliding shell, the tooth grooves of the transmission gear plate face opposite directions, and a driven gear is rotatably connected to the left and right ends of the inner wall of the sliding shell.
[0014] Furthermore, transmission gear plates are fixedly connected to the inner walls of both the front and rear ends of the sliding shell, with the tooth grooves of the transmission gear plates facing opposite directions, and driven gears are rotatably connected to the left and right ends of the inner wall of the sliding shell.
[0015] Furthermore, transmission gear plates are fixedly connected to the inner walls of both the front and rear ends of the sliding shell three, and the tooth grooves of the transmission gear plates three face each other.
[0016] This utility model has the following beneficial effects:
[0017] In this invention, after the vehicle arrives at the construction site and is parked stably, the central control system activates the electric hydraulic cylinder one to drive the transmission column to lift, and the linkage support plates one and two push the lifting plate to complete the initial lifting. Subsequently, the electric hydraulic cylinder two is activated to drive the sliding shell one to move horizontally. Through the meshing transmission of the driven gear one and the fixed toothed plate, the transmission toothed plate two drives the sliding shell two to lift vertically. Simultaneously, the driven gear two drives the transmission toothed plate three to control the horizontal extension and retraction of the sliding shell three, realizing the coordinated extension of the three-stage shell. This equipment realizes the rapid lifting and emergency retraction of the aerial work platform through the three-stage linkage mechanism. Combined with the gear-toothed plate meshing transmission system, it ensures high-altitude stability and ensures that workers can safely evacuate from the highest working height to the base protection area in a short time, reducing the risk of falling objects and structural collapse. Attached Figure Description
[0018] Figure 1 This is a perspective view of a climbing mechanism for building demolition proposed in this utility model;
[0019] Figure 2 This is a half-sectional view of the fixing plate of a climbing mechanism for building demolition proposed in this utility model;
[0020] Figure 3 This is a cross-sectional view of the connecting platform of a climbing mechanism for building demolition proposed in this utility model;
[0021] Figure 4 This is a cross-sectional view of the sliding shell of a climbing mechanism for building demolition proposed in this utility model;
[0022] Figure 5 This is a cross-sectional view of the sliding shell of a climbing mechanism for building demolition proposed in this utility model.
[0023] Legend:
[0024] 1. Drive body; 2. Fixed plate; 3. Lifting plate; 4. Sliding plate; 5. Support plate one; 6. Support plate two; 7. Protective plate; 8. Connecting platform; 9. Connecting column; 10. Transmission column; 11. Slider; 12. Sliding plate; 13. Electric hydraulic cylinder one; 14. Fixed shell; 15. Electric hydraulic cylinder two; 16. Sliding shell one; 17. Sliding shell two; 18. Sliding shell three; 19. Pedal; 20. Driven gear one; 21. Driven gear two; 22. Fixed gear plate; 23. Transmission gear plate one; 24. Transmission gear plate two; 25. Transmission gear plate three. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a building demolition climbing mechanism, comprising a drive vehicle body 1, a fixed plate 2 fixedly connected to the top of the drive vehicle body 1, a second support plate 6 rotatably connected to the front and rear sides of the right end of the fixed plate 2, a connecting column 9 rotatably connected to one end of the second support plate 6, a lifting plate 3 rotatably connected to the front and rear sides of the bottom end of the lifting plate 3, the second support plate 6 rotatably connected to the front and rear ends of the connecting column 9 respectively, a protective plate 7 fixedly connected to the top of the lifting plate 3, sliders 11 rotatably connected to the front and rear sides of the right end of the second support plate 6 and the first support plate 5, slide plates 4 slidably connected to the outer wall of the sliders 11, slide plates 4 fixedly connected to the front and rear sides of the bottom end of the lifting plate 3 and the front and rear sides of the top end of the fixed plate 2 respectively, a sliding plate 12 slidably connected to the inner wall of the bottom end of the fixed plate 2, an electric hydraulic cylinder 13 fixedly connected to the top of the sliding plate 12, a transmission column 10 rotatably connected to the driving end of the electric hydraulic cylinder 13, the front and rear ends of the transmission column 10 rotatably connected to one end of the second support plate 6 respectively.
[0027] Specifically: After the drive vehicle 1 travels to the construction site, it can quickly come to a standstill and be stably parked in the designated position through its built-in braking system and positioning device. Then, the operator can start the electric hydraulic cylinder 13 through the central control system in the drive vehicle 1, which drives the transmission column 10 to move upward. The upward movement of the transmission column 10, through its rigid connection with the support plate 5, drives the support plate 5 to move upward synchronously. Under the drive of the support plate 5, the support plate 6, with the cooperation of the connecting column 9, pushes the slider 11 to move horizontally along the inner groove of the slide plate 4. Due to the sliding cooperation between the slider 11 and the slide plate 4, the support plate 5 and the support plate 6 work together to lift the lifting plate 3 upward, thereby realizing the initial lifting of the lifting plate 3. This process, through the precise control of the electric hydraulic cylinder 13, ensures the smooth rise of the lifting plate 3. At the same time, the standstill of the drive vehicle 1 provides a stable foundation for the entire lifting operation. This design not only improves construction efficiency but also enhances the safety and reliability of the operation.
[0028] Reference Figures 3-5A connecting platform 8 is fixedly connected to the top of the lifting plate 3, corresponding to the inner wall of the protective plate 7. An electric hydraulic cylinder 15 is fixedly connected to the bottom of the connecting platform 8. Fixed toothed plates 22 are fixedly connected to the inner walls of both the front and rear ends of the fixed shell 14. The tooth grooves of the fixed toothed plates 22 face each other. The outer wall of the fixed shell 14 is fixedly connected to the inner wall of the connecting platform 8. A sliding shell 16 is slidably connected to the inner wall of the fixed shell 14. A sliding shell 17 is slidably connected to the inner wall of the sliding shell 16. A sliding shell 18 is slidably connected to the inner wall of the sliding shell 17. Several pedals 1 are fixedly connected to the inner wall of the sliding shell 18. 9. The inner walls of both the front and rear ends of sliding shell 16 are fixedly connected to transmission gear plate 23, with the tooth grooves of transmission gear plate 23 facing each other. The left and right ends of the inner wall of sliding shell 16 are respectively rotatably connected to driven gear 20. The inner walls of both the front and rear ends of sliding shell 27 are fixedly connected to transmission gear plate 24, with the tooth grooves of transmission gear plate 24 facing each other. The left and right ends of the inner wall of sliding shell 27 are respectively rotatably connected to driven gear 21. The inner walls of both the front and rear ends of sliding shell 38 are fixedly connected to transmission gear plate 35, with the tooth grooves of transmission gear plate 35 facing each other.
[0029] Specifically: When the electric hydraulic cylinder 15 is activated, the cylinder outputs axial thrust to drive the sliding shell 16 to perform linear displacement along the horizontal guide rail of the fixed shell 14; during this process, the driven gear 20 mounted on the outer side of the sliding shell 16 meshes with the trapezoidal tooth groove of the fixed tooth plate 22, thereby driving the transmission tooth plate 24 to reciprocate in the vertical direction, so that the sliding shell 17, which is rigidly connected to the transmission tooth plate 24, can achieve precise lifting and lowering. When the sliding shell 17 is vertically lifted and lowered, the driven gear 21 mounted on its side wall simultaneously meshes with the tooth groove of the fixed tooth plate 22, thereby driving the transmission tooth plate 25 to perform horizontal axial displacement, causing the sliding shell 18 to perform telescopic movement within the rectangular cavity of the sliding shell 17, through the three The composite linkage mechanism of the sliding shell group, namely sliding shell 16, sliding shell 27, and sliding shell 38, involves the horizontal advancement of sliding shell 16, the vertical lifting of sliding shell 27, and the horizontal extension of sliding shell 38, which form a vector superposition to achieve the synchronous extension of the three-stage telescopic mechanism. This linkage system allows workers standing on the top plate 19 of sliding shell 38 to trigger a rapid retraction program through the central control system in the event of a sudden wall collapse: the electric hydraulic cylinder 215 immediately reverses its action, causing the three-stage sliding shells to retract in a coordinated manner at a retraction speed of 0.5m / s, ensuring that workers can safely evacuate from the highest working height to the base protection area within 2 seconds. This safety response mechanism is more efficient than traditional equipment and significantly reduces the risk of work-related injuries caused by falling objects and structural collapses.
[0030] Working principle: After the drive vehicle 1 is driven to the construction site, it can be kept stationary and parked stably at the site. When the central control system inside the drive vehicle 1 is used to activate the electric hydraulic cylinder 13, the transmission column 10 is moved upward. The transmission column 10 drives the support plate 5, and the support plate 6, in cooperation with the connecting column 9, moves the slider 11 within the slide plate 4. This causes the support plate 5 and the support plate 6 to raise the lifting plate 3, thus achieving the initial lifting of the lifting plate 3. When the electric hydraulic cylinder 15 is activated to move the sliding shell 16, the sliding shell 16 moves within the fixed shell 14, causing the driven gear 20 at the sliding shell 16 to move along the fixed gear. The toothed groove at plate 22 moves and drives the transmission toothed plate 24, causing the transmission toothed plate 24 to drive the sliding shell 17 to rise and fall. During the rising and falling process, the sliding shell 17 drives the driven gear 21 to move along the toothed groove at the fixed toothed plate 22, and drives the transmission toothed plate 25, causing the transmission toothed plate 25 to drive the sliding shell 18 to move inside the sliding shell 17. This causes the sliding shell 16, sliding shell 27 and sliding shell 18 to extend synchronously. The staff standing at the pedal 19 at sliding shell 18 can quickly rise and retract at the same time, allowing the user to quickly escape when the wall is about to collapse.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A climbing mechanism for building demolition, comprising a drive vehicle (1), characterized in that: The top of the drive vehicle body (1) is fixedly connected to a fixed plate (2). The front and rear sides of the right end of the fixed plate (2) are rotatably connected to a support plate two (6). The support plate two (6) is rotatably connected to a connecting column (9) at one end. The front and rear ends of the connecting column (9) are connected to a lifting plate (3) through a support group. The top of the lifting plate (3) is fixedly connected to a protective plate (7). The top of the lifting plate (3) is fixedly connected to a connecting platform (8) corresponding to the inner wall of the protective plate (7). The bottom end of the connecting platform (8) is fixedly connected to an electric hydraulic cylinder two (15). The driving end of the electric hydraulic cylinder two (15) is connected to a fixed shell (14) through an extension group. The inner wall of the fixed shell (14) is slidably connected to a sliding shell one (16). The inner wall of the sliding shell one (16) is slidably connected to a sliding shell two (17). The inner wall of the sliding shell two (17) is slidably connected to a sliding shell three (18). The inner wall of the sliding shell three (18) is fixedly connected to several pedals (19).
2. The climbing mechanism for building demolition according to claim 1, characterized in that: The support group includes a second support plate (6) rotatably connected to both the front and rear sides of the bottom end of the lifting plate (3). The second support plate (6) is rotatably connected to the front and rear ends of the connecting column (9) at opposite ends.
3. The climbing mechanism for building demolition according to claim 2, characterized in that: The right end of the second support plate (6) and the first support plate (5) are rotatably connected to sliders (11), and the outer wall of the sliders (11) is slidably connected to slide plates (4). The slide plates (4) are fixedly connected to the front and rear sides of the bottom end of the lifting plate (3) and the front and rear sides of the top end of the fixed plate (2).
4. The climbing mechanism for building demolition according to claim 1, characterized in that: The bottom inner wall of the fixed plate (2) is slidably connected to a sliding plate (12), and the top of the sliding plate (12) is fixedly connected to an electric hydraulic cylinder (13). The drive end of the electric hydraulic cylinder (13) is rotatably connected to a transmission column (10), and the front and rear ends of the transmission column (10) are respectively rotatably connected to opposite ends of the support plate (6).
5. A climbing mechanism for building demolition according to claim 1, characterized in that: The extension assembly includes fixed toothed plates (22) fixedly connected to the inner walls of both the front and rear ends of the fixed shell (14). The toothed grooves of the fixed toothed plates (22) face each other. The outer wall of the fixed shell (14) is fixedly connected to the inner wall of the connecting platform (8).
6. A climbing mechanism for building demolition according to claim 1, characterized in that: The inner walls of the front and rear ends of the sliding shell (16) are fixedly connected to a transmission gear plate (23), the tooth grooves of the transmission gear plate (23) face each other, and the left and right ends of the inner wall of the sliding shell (16) are respectively rotatably connected to a driven gear (20).
7. A climbing mechanism for building demolition according to claim 1, characterized in that: The inner walls of the front and rear ends of the sliding shell 2 (17) are fixedly connected with transmission gear 2 (24), the tooth grooves of the transmission gear 2 (24) face each other, and the left and right ends of the inner wall of the sliding shell 2 (17) are respectively rotatably connected with driven gear 2 (21).
8. A climbing mechanism for building demolition according to claim 1, characterized in that: The inner walls of the front and rear ends of the sliding shell three (18) are fixedly connected to the transmission tooth plate three (25), and the tooth grooves of the transmission tooth plate three (25) face each other.